amadey | 7ac40521a2a79b354db1edf99cc528b7db47161c30533bf421c709cd2c31cb14

General

Target

7ac40521a2a79b354db1edf99cc528b7db47161c30533bf421c709cd2c31cb14.exe
Size

1.6MB
MD5

312b71d8602f8422ba9eb3cb1895c084
SHA1

0d19e38c4610f9857bba6ed95abc11b13b989099
SHA256

7ac40521a2a79b354db1edf99cc528b7db47161c30533bf421c709cd2c31cb14
SHA512

1504ddcebda7fd2fa43ec800f293048737dff836db77878bfd1ca2cd8cc72531d542a3234f0910de0cf188a0cf49f4606f9b2c734a6958c39247d6dbd73c1128
SSDEEP

24576:24wCVF1fNGdMhKnb0u8fnQTacHoqCUI0CQGeKXNxO6vdDLhrgYq3TwSJbJnKuCXb:eyT40hQecIvwrl2CMdd6ZNnyXze/sku

Score

10^/10

amadey evasion themida trojan

Malware Config

Extracted

Family

amadey

Version

4.20

C2

http://5.42.96.141

Attributes

install_dir
908f070dff
install_file
explorku.exe
strings_key
b25a9385246248a95c600f9a061438e1
url_paths
/go34ko8/index.php

rc4.plain

Signatures

Amadey
Amadey bot is a simple trojan bot primarily used for collecting reconnaissance information.
trojan amadey

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	7ac40521a2a79b354db1edf99cc528b7db47161c30533bf421c709cd2c31cb14.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	explorku.exe

Checks BIOS information in registry 2 TTPs 4 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	7ac40521a2a79b354db1edf99cc528b7db47161c30533bf421c709cd2c31cb14.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	7ac40521a2a79b354db1edf99cc528b7db47161c30533bf421c709cd2c31cb14.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	explorku.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	explorku.exe

Executes dropped EXE 1 IoCs

pid	Process
1952	explorku.exe

Themida packer 20 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral2/memory/3004-1-0x0000000001000000-0x000000000152C000-memory.dmp	themida
behavioral2/memory/3004-0-0x0000000001000000-0x000000000152C000-memory.dmp	themida
behavioral2/memory/3004-7-0x0000000001000000-0x000000000152C000-memory.dmp	themida
behavioral2/memory/3004-8-0x0000000001000000-0x000000000152C000-memory.dmp	themida
behavioral2/memory/3004-6-0x0000000001000000-0x000000000152C000-memory.dmp	themida
behavioral2/memory/3004-5-0x0000000001000000-0x000000000152C000-memory.dmp	themida
behavioral2/memory/3004-4-0x0000000001000000-0x000000000152C000-memory.dmp	themida
behavioral2/memory/3004-3-0x0000000001000000-0x000000000152C000-memory.dmp	themida
behavioral2/memory/3004-2-0x0000000001000000-0x000000000152C000-memory.dmp	themida
behavioral2/files/0x000100000002a9d9-14.dat	themida
behavioral2/memory/1952-24-0x0000000000840000-0x0000000000D6C000-memory.dmp	themida
behavioral2/memory/1952-25-0x0000000000840000-0x0000000000D6C000-memory.dmp	themida
behavioral2/memory/1952-30-0x0000000000840000-0x0000000000D6C000-memory.dmp	themida
behavioral2/memory/1952-27-0x0000000000840000-0x0000000000D6C000-memory.dmp	themida
behavioral2/memory/1952-26-0x0000000000840000-0x0000000000D6C000-memory.dmp	themida
behavioral2/memory/1952-29-0x0000000000840000-0x0000000000D6C000-memory.dmp	themida
behavioral2/memory/1952-28-0x0000000000840000-0x0000000000D6C000-memory.dmp	themida
behavioral2/memory/1952-23-0x0000000000840000-0x0000000000D6C000-memory.dmp	themida
behavioral2/memory/3004-21-0x0000000001000000-0x000000000152C000-memory.dmp	themida
behavioral2/memory/1952-31-0x0000000000840000-0x0000000000D6C000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 2 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	7ac40521a2a79b354db1edf99cc528b7db47161c30533bf421c709cd2c31cb14.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	explorku.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\explorku.job	7ac40521a2a79b354db1edf99cc528b7db47161c30533bf421c709cd2c31cb14.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3004 wrote to memory of 1952	3004	7ac40521a2a79b354db1edf99cc528b7db47161c30533bf421c709cd2c31cb14.exe	77
PID 3004 wrote to memory of 1952	3004	7ac40521a2a79b354db1edf99cc528b7db47161c30533bf421c709cd2c31cb14.exe	77
PID 3004 wrote to memory of 1952	3004	7ac40521a2a79b354db1edf99cc528b7db47161c30533bf421c709cd2c31cb14.exe	77

C:\Users\Admin\AppData\Local\Temp\7ac40521a2a79b354db1edf99cc528b7db47161c30533bf421c709cd2c31cb14.exe
"C:\Users\Admin\AppData\Local\Temp\7ac40521a2a79b354db1edf99cc528b7db47161c30533bf421c709cd2c31cb14.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:3004
- C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe
  "C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe"
  2⤵
  - Identifies VirtualBox via ACPI registry values (likely anti-VM)
  - Checks BIOS information in registry
  - Executes dropped EXE
  - Checks whether UAC is enabled
  PID:1952

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

3

T1082

Virtualization/Sandbox Evasion

1

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe

Filesize
1.6MB

MD5
312b71d8602f8422ba9eb3cb1895c084

SHA1
0d19e38c4610f9857bba6ed95abc11b13b989099

SHA256
7ac40521a2a79b354db1edf99cc528b7db47161c30533bf421c709cd2c31cb14

SHA512
1504ddcebda7fd2fa43ec800f293048737dff836db77878bfd1ca2cd8cc72531d542a3234f0910de0cf188a0cf49f4606f9b2c734a6958c39247d6dbd73c1128

Download Submit
memory/1952-29-0x0000000000840000-0x0000000000D6C000-memory.dmp

Filesize
5.2MB

Download
memory/1952-26-0x0000000000840000-0x0000000000D6C000-memory.dmp

Filesize
5.2MB

Download
memory/1952-24-0x0000000000840000-0x0000000000D6C000-memory.dmp

Filesize
5.2MB

Download
memory/1952-23-0x0000000000840000-0x0000000000D6C000-memory.dmp

Filesize
5.2MB

Download
memory/1952-28-0x0000000000840000-0x0000000000D6C000-memory.dmp

Filesize
5.2MB

Download
memory/1952-27-0x0000000000840000-0x0000000000D6C000-memory.dmp

Filesize
5.2MB

Download
memory/1952-25-0x0000000000840000-0x0000000000D6C000-memory.dmp

Filesize
5.2MB

Download
memory/1952-30-0x0000000000840000-0x0000000000D6C000-memory.dmp

Filesize
5.2MB

Download
memory/1952-31-0x0000000000840000-0x0000000000D6C000-memory.dmp

Filesize
5.2MB

Download
memory/3004-8-0x0000000001000000-0x000000000152C000-memory.dmp

Filesize
5.2MB

Download
memory/3004-2-0x0000000001000000-0x000000000152C000-memory.dmp

Filesize
5.2MB

Download
memory/3004-3-0x0000000001000000-0x000000000152C000-memory.dmp

Filesize
5.2MB

Download
memory/3004-4-0x0000000001000000-0x000000000152C000-memory.dmp

Filesize
5.2MB

Download
memory/3004-7-0x0000000001000000-0x000000000152C000-memory.dmp

Filesize
5.2MB

Download
memory/3004-1-0x0000000001000000-0x000000000152C000-memory.dmp

Filesize
5.2MB

Download
memory/3004-5-0x0000000001000000-0x000000000152C000-memory.dmp

Filesize
5.2MB

Download
memory/3004-6-0x0000000001000000-0x000000000152C000-memory.dmp

Filesize
5.2MB

Download
memory/3004-21-0x0000000001000000-0x000000000152C000-memory.dmp

Filesize
5.2MB

Download
memory/3004-0-0x0000000001000000-0x000000000152C000-memory.dmp

Filesize
5.2MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads